A benzo in the mix could have protected you some what.Well after some research online and reading through the replies above, I'm inclined to believe it was serotonin syndrome. The amphetamines, one benzodiazepine, and a couple doses of cyclobenzaprine most likely spiked my serotonin levels dangerously high
(I didn't mention the benzo before because it was one and I didn't consider it relevant)
It's a miracle I survived doing things this stupid